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Mostrando ítems 1011-1020 de 2494
Effect of volcanic eruptions on stratospheric ozone and irradiance
(Nova Science Publishers, 2015)
Major volcanic eruptions can inject large amounts of sulfur into the stratosphere, increasing the stratospheric aerosol layer for several years. In the last decades, this effect was observed after the eruptions of El ...
Effect of aerosols and NO2 concentration on ultraviolet actinic flux near Mexico City during MILAGRO: measurements and model calculations
(Copernicus Publications, 2013-01)
Urban air pollution absorbs and scatters solar ultraviolet (UV) radiation, and thus has a potentially large effect on tropospheric photochemical rates. We present the first detailed comparison between actinic fluxes (AF) ...
Semi-empirical Modeling of the Photosphere, Chromosphere, Transition Region, and Corona of the M-dwarf Host Star GJ 832
(IOP Publishing, 2016-10)
Stellar radiation from X-rays to the visible provides the energy thatcontrols the photochemistry and mass loss from exoplanet atmospheres.The important extreme ultraviolet (EUV) region (10-91.2 nm) isinaccessible and should ...
Perfil fitoquímico y evaluación del potencial fotoprotector de Syringodium filiforme KÜTZING
(2017)
Syringodium filiforme Kützing (Cymodoceaceae) es una planta marina abundante en el Mar Caribe, rica en compuestos fenólicos, que tiene propiedades antioxidantes y puede proporcionar nuevas oportunidades para el tratamiento ...
Human enteric viruses in a wastewater treatment plant: evaluation of activated sludge combined with UV disinfection process reveals different removal performances for viruses with different features
(Wiley Blackwell Publishing, Inc, 2018-03)
This study assess the quality of wastewater through the detection and quantification of important viruses causing gastroenteritis at different stages of the wastewater treatment process in an activated-sludge wastewater ...
Respostas fisiológicas de macroalgas continentais à radiação ultravioleta
(Universidade Estadual Paulista (Unesp), 2017-06-23)
Nos últimos séculos a história do ser humano no planeta Terra tem sido marcada por intensos impactos ambientais antropogênicos negativos, dentre os quais destaca-se a maior exposição da radiação ultravioleta (UV) na ...
Ultraviolet light-mediated activation of persulfate for the degradation of cobalt cyanocomplexes
(Universidad de la Costa, 2020)
Caracterización de productos de protección personal por radiación uv e índice ultravioletaCharacterization of personal protection products through radiación uv and ultraviolet index
(Asociacion Argentina de Energia, 2009-09)
Con el fin de minimizar los muy bien conocidos riesgos de la exposición a la radiación ultravioleta y sistematizar la información obtenida para la definición de un índice (UVI), se analizan y caracterizan en este trabajo, ...